Evaluation of axillary lymph nodes in breast cancer patients with clinically negative axilla using contrast enhanced ultrasonography. - Jain, Roshit; Khanna, Rahul; Verma, Ashish; Mishra, Shashi Prakash; Meena, Ram Niwas; Khanna, Seema; Khanna, Siddharth (World Journal of Surgical Oncology, 2024)